VCLoadApplication method swizzle

gistfile1.txt

@implementation UIView (swizzled)

-(void) swizzledSetNeedsDisplay
{
	//if( _currentFrame != _lastDrawnFrame )
	{
		//[super setNeedsDisplay];
	}
}
@end

@implementation VCLoadApplication

/** Mike Ash's suggested class swizzling function */
void Swizzle(Class c, SEL orig, SEL new)
{
    Method origMethod = class_getInstanceMethod(c, orig);
    Method newMethod = class_getInstanceMethod(c, new);
    if(class_addMethod(c, orig, method_getImplementation(newMethod), method_getTypeEncoding(newMethod)))
        class_replaceMethod(c, new, method_getImplementation(origMethod), method_getTypeEncoding(origMethod));
    else
		method_exchangeImplementations(origMethod, newMethod);
}

- (void)viewDidLoad
{
    [super viewDidLoad];
	// Do any additional setup after loading the view.
	
}

- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
}

-(void)viewDidAppear:(BOOL)animated
{
	/** patch the sprite's to change their setNeedsDisplay */
	int numClasses = objc_getClassList(NULL, 0);
	Class *classes = NULL;
	
	classes = malloc(sizeof(Class) * numClasses);
	numClasses = objc_getClassList(classes, numClasses);
	
	NSMutableArray *result = [NSMutableArray array];
    for (NSInteger i = 0; i < numClasses; i++)
    {
        Class nextClass = classes[i];
		NSString* className = [nextClass description];
		
		if( [className hasSuffix:@"SpriteBase"] )
		{
			// swizzle it
			NSLog(@"[%@] Swizzling class: %@", [self class], className );
			
			Swizzle( nextClass, @selector(setNeedsDisplay), <#SEL new#>)
		}
	}
	
	free(classes);